title: Host-Specific Toxin Production by Rhizoctonia solani, the Rice Sheath Blight Pathogen.
abstract: ABSTRACT Rhizoctonia solani, the rice sheath blight pathogen, produces a toxin that reproduces all symptoms of the disease. The toxin has been partially purified and it was found to be a carbohydrate containing glucose, mannose, N-acetylgalactosamine, and N-acetylglucosamine. The toxin was also detected in infected leaves. Highly virulent isolates produced more toxin than less virulent isolates. Several R. solani isolates from rice and one each from cotton and tomato produced a similar toxin. All rice cultivars tested were susceptible to the pathogen and sensitive to the toxin. Host specificity of the toxin has been demonstrated using hosts and nonhosts of the pathogen.
authors.forename: P
authors.initials: P
authors.lastname: Vidhyasekaran
authors.forename: T R
authors.initials: TR
authors.lastname: Ponmalar
authors.forename: R
authors.initials: R
authors.lastname: Samiyappan
authors.forename: R
authors.initials: R
authors.lastname: Velazhahan
authors.forename: R
authors.initials: R
authors.lastname: Vimala
authors.forename: A
authors.initials: A
authors.lastname: Ramanathan
authors.forename: V
authors.initials: V
authors.lastname: Paranidharan
authors.forename: S
authors.initials: S
authors.lastname: Muthukrishnan